using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BaseCellSimulation.Enzyms.Cytosol
{
    public class Lactat_Dehydrogenase : InternalEnzym
    {
        public Lactat_Dehydrogenase()
        {
            Km = 0.5;
            Vmax = 10;

            KmRange = new(0.05,2);
            VmaxRange = new(2, 25);

            Km_NADH = 0.05;
            Km_NADH_Range = new(0.005, 0.2);
        }

        public double Km_NADH { get; set; }

        public ValueRange Km_NADH_Range { get; set; }

        public override void ApplyChanges(CellRessources res, double dt)
        {
            double used = Math.Min(rate * dt, Math.Min(res.Res.Carbon.Pyruvate, res.Res.Energy.NADH));

            //LDH Lactat production and NAD+ regeneration
            res.Res.Carbon.Pyruvate    -= used;
            res.Res.Carbon.Lactate     += used;
            res.TransferNADH(used,true);

            //Consume Protons
            res.Res.Ions.Protons -= 1.0 * used;
        }

        public override void ComputeRate(Resources res)
        {
            double oxscaled = res.Oxygen * 1000;
            double o2Factor = Math.Max(0.0, 1.0 - oxscaled / (oxscaled + 10.0));
            rate = Vmax * o2Factor
              * (res.Carbon.Pyruvate / (Km + res.Carbon.Pyruvate))
              * (res.Energy.NADH / (Km_NADH + res.Energy.NADH));
            
        }
    }
}